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NEN-EN 13670:2009 - A Standard for Concrete Structures
NEN-EN 13670:2009 is a European standard that specifies the requirements for the execution of concrete structures. It covers the design, production, delivery, installation, inspection, testing and documentation of concrete structures. The standard applies to both cast-in-place and precast concrete elements.
The standard aims to ensure the quality, durability and safety of concrete structures in accordance with the principles and requirements of Eurocode 2. It also provides guidance on how to comply with the relevant national regulations and codes of practice.
If you are looking for a reliable source to download the PDF version of NEN-EN 13670:2009, you can visit the official website of NEN Connect[^1^]. NEN Connect is a service that provides access to thousands of standards online. You can preview, download and print the standards you need anytime and anywhere. You can also manage your standards collection and get notified of updates and changes.
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NEN-EN 13670:2009 PDF is a valuable resource for engineers, architects, contractors, inspectors and anyone involved in concrete structures. It provides a comprehensive and consistent framework for executing concrete structures in Europe. By following the standard, you can ensure that your concrete structures meet the highest standards of quality and performance.Examples of Concrete Structures Around the World
Concrete structures are not only functional and durable, but also diverse and beautiful. Concrete can be used to create various forms and shapes, from simple and geometric to complex and organic. Concrete can also blend with the natural environment or stand out as a striking contrast. Here are some examples of concrete structures around the world that showcase the versatility and aesthetic potential of concrete.
The Pantheon in Rome, Italy, is one of the oldest and most famous concrete structures in history. Built in the 2nd century AD, it features a massive concrete dome with a central oculus that lets in natural light. The dome is still the largest unreinforced concrete dome in the world, and its design inspired many other domed buildings throughout history.
The Sydney Opera House in Sydney, Australia, is an iconic example of modern concrete architecture. Designed by Danish architect JÃrn Utzon, it consists of a series of precast concrete shells that form the roof of the complex. The shells are supported by reinforced concrete columns and beams, and covered with white ceramic tiles. The opera house is a UNESCO World Heritage Site and a symbol of Australia's cultural identity.
The Fallingwater House in Mill Run, Pennsylvania, USA, is a masterpiece of organic architecture by Frank Lloyd Wright. Built in 1939 as a weekend retreat for a wealthy family, it integrates concrete with natural materials such as stone and wood. The house is famous for its cantilevered concrete terraces that extend over a waterfall, creating a harmonious connection with nature.
The National Museum of Brazil in BrasÃlia, Brazil, is a stunning example of concrete sculpture by Oscar Niemeyer. Completed in 2006, it consists of a white concrete dome that appears to float above a reflecting pool. The dome has a circular opening that reveals the exhibition space inside. The museum is part of Niemeyer's architectural complex in BrasÃlia, the capital city he designed in the 1950s.
The Jubilee Church in Rome, Italy, is a remarkable example of concrete engineering by Richard Meier. Completed in 2003, it features three concrete sails that rise from a rectangular base. The sails are made of white self-cleaning concrete that re